1228379 has 4 divisors (see below), whose sum is σ = 1230600. Its totient is φ = 1226160.

The previous prime is 1228373. The next prime is 1228391. The reversal of 1228379 is 9738221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1228379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464 + ... + 1634.

It is an arithmetic number, because the mean of its divisors is an integer number (307650).

2^1228379 is an apocalyptic number.

1228379 is a deficient number, since it is larger than the sum of its proper divisors (2221).

1228379 is a wasteful number, since it uses less digits than its factorization.

1228379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220.

The product of its digits is 6048, while the sum is 32.

The square root of 1228379 is about 1108.3226064644. The cubic root of 1228379 is about 107.0970383558.

The spelling of 1228379 in words is "one million, two hundred twenty-eight thousand, three hundred seventy-nine".